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Bone Biomechanics: Difference between revisions
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== Types of Bone == | |||
Bone consists of two forms: woven and lamella | |||
{| class="wikitable" | |||
|+Woven vs Lamellar Bone | |||
!Property | |||
!Woven Bone | |||
!Lamellar Bone | |||
|- | |||
|Definition | |||
|"Primitive", immature | |||
|"Mature" bone, remodelled from woven bone | |||
|- | |||
|Found in | |||
|Embryo and new-born, in fracture callus, metaphyseal region of growing bone, tumours, osteogenesis imperfecta, and pagetic bone. | |||
|Throughout the mature skeleton in both cancellous trabecular and cortical bone. | |||
|- | |||
|Composition | |||
|Dense coarse-fibred collagen, varied mineral content, greater turnover, more cells per unit volume with random arrangement, no lamellae. | |||
|Formed by intramembranous or endochondral ossification, contains collagen fibres. | |||
|- | |||
|Organisation | |||
|Randomly arranged collagen fibres, disorganised | |||
|Highly ordered, stress-oriented collagen fibres | |||
|- | |||
|Mechanical Properties | |||
|Isotropic | |||
|Anisotropic | |||
|- | |||
|Strength | |||
|Weaker, more flexible, more easily deformed | |||
|More stiffness and strength | |||
|} | |||
[[Category:Anatomy]] | [[Category:Anatomy]] |
Revision as of 16:57, 25 July 2021
This article is a stub.
Types of Bone
Bone consists of two forms: woven and lamella
Property | Woven Bone | Lamellar Bone |
---|---|---|
Definition | "Primitive", immature | "Mature" bone, remodelled from woven bone |
Found in | Embryo and new-born, in fracture callus, metaphyseal region of growing bone, tumours, osteogenesis imperfecta, and pagetic bone. | Throughout the mature skeleton in both cancellous trabecular and cortical bone. |
Composition | Dense coarse-fibred collagen, varied mineral content, greater turnover, more cells per unit volume with random arrangement, no lamellae. | Formed by intramembranous or endochondral ossification, contains collagen fibres. |
Organisation | Randomly arranged collagen fibres, disorganised | Highly ordered, stress-oriented collagen fibres |
Mechanical Properties | Isotropic | Anisotropic |
Strength | Weaker, more flexible, more easily deformed | More stiffness and strength |